Problem set 3 : Extend the "movie release" ER model from slide 146 in order to model multi-region ratings as
hinted at in slide 151. Explore the choice between ternary relationships and multiple binary relationships
as presented in slides 152 and 153.

To use from Java code (as used in Further Java) :
Unzip the archive file, change to extracted directory,
then launch a database GUI with java -cp {YOURPATH}hsqldb.jar org.hsqldb.util.DatabaseManagerSwing.

To use the read-execute-print loop use sqltool.jar,
java -jar {YOURPATH}sqltool.jar.
You may have to set up a sqltool.rc file in your home directory as documented at
http://hsqldb.org.